KR200335201Y1 - Sources of electricity controlling apparatus of dvr for ca - Google Patents

Abstract

The present invention reliably monitors and compensates for the temperature and power even when the power of the DV device is changed due to a change in the power of the DV device that is mounted on the vehicle and performs a monitoring function. A power supply control apparatus for a vehicle television device for driving a vehicle, the system control unit 20 for controlling the entire system, a second pulse generator 80 for generating a 60 Hz signal, and an output from the power supply unit 16. AC square wave power output from the pulse switching unit 18 and the noise blocking unit 40, which are symmetrically formed so that two sets are symmetrically so as to alternately turn on and off 60 Hz by receiving a power supply. And a first pulse generator 60 for outputting a pulse signal of a predetermined frequency and a power compensator 68 configured to compensate for a change in the voltage output from the power output unit 66. And, the invention is characterized in that it is composed of a temperature sensing unit 72 for detecting when the temperature rises in the portion after the first pulse generator 60.

Description

SOURCES OF ELECTRICITY CONTROLLING APPARATUS OF DVR FOR CA}

The present invention relates to a power control device for a vehicle DV (DVR) device, in particular, even if the temperature of the DV device increases due to the change in the vehicle power to the DV device mounted on the vehicle to monitor And it relates to a power control device for a vehicle TV device for stably driving the DVD device by checking and compensating for the power.

In general, DV devices have been installed in buildings or offices to monitor pedestrians or surroundings.However, in recent years, there has been an increase in the number of vehicles and the necessity to ensure the safety of guests in vehicles and various traffic accidents. In the event of an accident, there was a problem that it was difficult to solve when the two companies insisted on different opinions, and even if the people passing by were witnesses, it would be effective to solve the problem due to realistic limitations. There was a problem that could not come.

Therefore, if you want to install a DV on the vehicle to protect the traffic accident and occupant safety caused by the increase of the vehicle, the vehicle is not fixed but is always fixed and moved and is supplied from the vehicle. There is a problem in that the power source is volatile so that it is difficult to drive the DVD device.

The present invention is to solve the above problems, if you want to install the device in the vehicle to perform the monitoring function, to be able to drive the DV monitoring device stably against the change in the power supplied from the vehicle The present invention provides a power supply control device for a vehicle TV device.

In order to achieve the above object, a power supply control apparatus for a vehicle TV device according to the present invention includes a system control unit 20 for controlling the entire system, a power supply unit 16 for supplying power input from the outside, and the system control unit. A second pulse generator 80 for receiving a signal output from the 20 and generating a 60 Hz signal, and a fan driving for controlling the fan 85 to receive a signal output from the system controller 20; A control unit 84, a pulse switching unit 18 having two sets symmetrically formed to alternately turn on and off 60 Hz by receiving power output from the power supply unit 16; The transformer 30 outputs an AC square wave having a constant voltage according to the switching of the pulse switching unit 18, and the noise blocking unit 40 blocking noise contained in the voltage output from the transformer 30. ) And the noise blocking unit 40 The first pulse generator 60 receives the AC square wave power output and outputs a pulse signal of a predetermined frequency, and receives a pulse signal of a predetermined frequency output from the first pulse generator 60 to a constant voltage. A transformer unit 64 for converting, a power output unit 66 for receiving the power converted to a constant voltage from the transformer unit 64, and converting and outputting a variety of voltages according to use, and the power output unit 66 The power compensator 68 is formed to compensate for a change in the voltage output from the power supply, and the signals are switched to receive the various signals to output various signals to the power compensator 68 and the connector 101. The data switching unit 60 to be driven, and the temperature sensing unit 72 for detecting when the temperature rises in the portion after the first pulse generator 60 is characterized in that it is configured.

1 is a schematic diagram of a TV device of the present invention installed in a vehicle,

Figure 2 is a block diagram of a power control device of a vehicle TV device of the present invention,

Figure 3 is a detailed circuit diagram of a part of the power control device of the vehicle TV device of the present invention,

Figure 4 is a detailed circuit diagram of another part of the power control device of the vehicle TV device of the present invention.

<Description of the symbols for the main parts of the drawings>

16: power supply unit 18: pulse switching unit

20: system control unit 30: transformer unit

40: noise blocking unit 60: first pulse generating unit

64: transformer 66: power output unit

68: power compensation unit 69: data switching unit

72: temperature detection unit 76: auxiliary power guide unit

80: second pulse generator 82: pulse control unit

83: display unit 84: fan drive control unit

104: connector 165: noise shield

Detailed configuration of the power control device for a vehicle TV device of the present invention is described through the accompanying drawings as follows.

Typically, a DV device is installed on a building or a roadside to prevent an accident by monitoring a vehicle or a person, and to determine a cause of an accident when an accident occurs. FIG. 1 shows a DB device 110. A state diagram showing a state in which a plurality of monitoring devices 111 are installed inside the vehicle and monitors various parts of the vehicle to monitor various parts of the vehicle, and the monitoring device 111 is moved forward, rear, or side according to a user's selection. It can be installed and monitored.

2 is a schematic block diagram of a power control apparatus for a vehicle TV apparatus according to the present invention, a system control unit 20 for controlling the whole system, and a power supply unit 16 for supplying power (12V to 24V) input from the outside. ), A second pulse generator 80 that receives a signal output from the system controller 20 and generates a 60 Hz signal, and a fan 85 that receives a signal output from the system controller 20. Two sets of symmetrical pulses are formed to switch the fan drive control unit 84 to control the driving and the power output from the power supply unit 16 to alternately turn on and off 60 Hz. The switching unit 18, the transformer unit 30 for outputting AC square wave of 12V to 380V according to the switching of the pulse switching unit 18, and the noise contained in the voltage output from the transformer unit 30 Noise blocking unit 40 to cut off, and the noise difference The first pulse generator 60 to receive the AC square wave power output from the unit 40 to output a pulse signal of a predetermined frequency, and the pulse signal of the constant frequency output from the first pulse generator 60 A transformer unit 64 that receives an input and converts it into a constant voltage, a power output unit 66 that receives the power converted into a constant voltage from the transformer unit 64, and converts and outputs a variety of voltages according to use; The power compensator 68 is configured to compensate for a change in the voltage output from the output unit 66 and various signals are inputted to switch the signals to the power compensator 68 and the connector 101. The data switching unit 60 outputs and drives various devices, and a temperature sensing unit 72 for detecting a temperature increase in a portion after the first pulse generator 60.

The power supply unit 16 is connected to the first reverse voltage prevention unit 162 and the first reverse voltage prevention unit 162 which are formed to prevent the power input from the outside reversely flowing and noise for removing DC noise. Power cut-off unit 165, a power charging unit 164 formed of a plurality of capacitors to delay up to 5 seconds to operate the device even if the power is cut off due to the temperature rise, and the power output from the power charging unit 164 When applied to the transformer unit 30 is formed as a second reverse voltage prevention unit 163 to prevent the reverse flow.

In addition, the pulse switching unit 18 receives a 60 Hz signal output from the second pulse generator 80 to switch the two sets alternately, that is, the odd and even concepts, and the first switching unit 181. ) And the second switching unit 182 are simultaneously operated to be turned on (ON), the third switching unit 183 and the fourth switching unit 184 is blocked at the same time, on the contrary, the first switching unit 181 and the first When the two switching units 182 are blocked at the same time, the third switching unit 183 and the fourth switching unit 184 are simultaneously turned on to operate.

The transformer 30 can output up to 12V to 380V. When the user wants to output a power of 12V, the transformer 30 can be used to have a capacity suitable for the power supply, and to output 380V. In this case, the transformer unit 30 having a capacity suitable for 380V may be used.

The noise blocking unit 40 is connected to a plurality of diodes to remove noise included in the power output from the transformer unit 30. The noise blocking unit 40 is connected to the first transformer 31. 41 is formed, and the second noise blocking portion 42 is formed in the second transformer 32.

The first pulse generator 60 outputs a pulse of 125 KHz to 320 KHz. The first pulse generator 60 is configured to switch an input signal and an amplifier 602 for amplifying the input signal. And a plurality of diodes, resistors, and capacitors for circuit stabilization.

The power output unit 66 is a part for forming various voltages output from the transformer unit 64. The power output unit 66 includes a first power output unit 661 for outputting a 12V power and a 5V power output. The second power output unit 663 and the third power output unit 665 for outputting another 5V power supply are formed.

However, the separation of the second power output unit 663 and the third power output unit 665 is to prevent damage due to noise.

In addition, the power compensator 68 is a circuit for compensating when there is an error in the power output from the power output unit 66, that is, when the power fluctuates. The constant voltage controller 681 controls to output 5V power. And a switching unit 683 that receives and transmits a signal output from the constant voltage control unit 681.

The data switching unit 69 receives and switches various control signals input from the outside to control the on / off control of power or external devices such as video and TV.

In addition, connectors 101 to 104 for connecting external devices are formed in the power output unit 66 and the data switching unit 60.

The temperature detecting unit 72 detects this when the temperature of the tertiary side rises due to various influences and transmits a signal to the second pulse generating unit 80, which is then transmitted by the second pulse generating unit 80. By detecting and outputting a variable frequency, the voltage output from the transformer unit 30 is switched by alternately switching between the odd and even pairs according to the changed frequency in the pulse switching unit 18 connected to the second pulse generator 80. Will be corrected.

However, if the correction is not performed even in the temperature correction, the power is cut off on the screen according to the control of the system controller 20, and then the power of the tertiary side is forcibly cut off.

In addition, the auxiliary power guide unit 76 serves as a kind of auxiliary power supplying power for a predetermined time even though the power is suddenly cut off, that is, power that has always been charging constant power in the power charging unit 164. This part is controlled to be supplied, when the power is input through the power connector 762 in the normal state, when the power is suddenly cut off, the power is input through the auxiliary power connector 763.

The second pulse generator 80 controls a pulse controller 82 to output a 60 Hz pulse signal according to an input signal, and a display unit 83 displayed externally as the pulse controller 82 operates. It is formed.

The fan driving controller 84 includes a comparator 842 for comparing and outputting a signal input from the outside, a transistor QS3 for receiving and switching a signal output from the comparator 842 as a base terminal, The transistor QS4 has a base terminal connected to an emitter terminal of the transistor QS3. A fan 85 is connected to the emitter terminal of the transistor QS4. A zener diode 843 is formed at the input terminal of the.

Referring to the operation of the present invention configured as described above are as follows.

The device of the present invention is installed inside the vehicle, and the monitoring device 111 is installed and monitored by the user at a desired position, and then the DC 12V to 24V power supplied from the vehicle is received through the power supply unit 16. do.

When the power is received through the power supply unit 16 as described above, it is input through the power connection unit 762 terminal of the auxiliary power guide unit 76, and then output by the constant voltage control unit 761 at a constant DC 5V voltage. do.

A part of the power that is converted into DC 5V by the auxiliary power guide unit 76 and outputted is supplied to the system controller 20, and then the second pulse generation that receives a signal output from the system controller 20 is received. The pulse control unit 82 of the unit 80 generates a pulse of 60 Hz, and in this case, the display unit 83 displays the externally.

As described above, the pulse signal having a frequency of 60 Hz output from the pulse controller 82 may include a first switching unit 181 and a second switching unit of the pulse switching unit 18 connected to the second pulse generator 80. The first switching unit 181 and the second switching unit 182 are turned on, and the third switching unit 183 is applied to the third switching unit 183 and the fourth switching unit 184. The unit 183 and the fourth switching unit 184 alternately perform an on and off operation.

As the first switching unit 181 and the second switching unit 182 and the third switching unit 183 and the fourth switching unit 184 of the pulse switching unit 18 alternately turn on and off, A first transformer 31 of the transformer unit 30 connected to the first switching unit 181 and the second switching unit 182, the third switching unit 183, and the fourth switching unit 184; The second transformer 32 is alternately turned on and off to convert power and output the same.

The power output in this manner is applied to the first pulse generating unit 60 after removing noise by the first noise blocking unit 41 and the second noise blocking unit 42 of the noise blocking unit 40.

The signal applied to the first pulse generator 60 is switched by the switching unit 601 and then amplified by the amplifier 602 to output a pulse signal of 125 KHz.

As described above, the transformer unit 64 receives the pulse signal of 125 KHz and various powers are output to the power output unit 66.

That is, among the power output to the power output unit 66, 12V power is output to the first power output unit 661, 5V power is output to the second power output unit 662, and the third power source. The output part 663 is separately outputted with another 5V power supply.

As such, when the power output through the power output unit 66 is not constant, the power compensator 68 is connected to the output terminal of the power output unit 66 to compensate for the power to be kept constant. After compensating with a constant power supply by the constant voltage control unit 681, switching through the switching unit 683 is applied to the first pulse generator 60 again to correct the frequency, so that the output from the transformer unit 64 The power supply is compensated to be constant.

On the other hand, when the temperature of the temperature sensing unit 72 rises, the second pulse generator 80 receives the signal output from the temperature sensing unit 72 to adjust the frequency to the pulse switching unit 18 If the temperature rises and overheats even in such temperature compensation control, the power is forcibly cut off through the data output unit 692 of the data switching unit 60 under the control of the system control unit 20. After outputting to the user so that the user should know that the information should be forced, the control signal is forcibly applied through the tertiary power connection unit 691 of the data switching unit 60 to finally cut off the power of the tertiary side. Will be protected.

The data output unit 692 may use an external device connected to the connector 101 according to a control signal of the system controller 20 when the user wants to use an external device such as a TV or a video. .

For example, when the power is cut off due to the start of the vehicle (off) or a sudden effect, that is, the power applied to the power connection unit 762 is cut off through a terminal in the noise blocking unit 165, Instead, the power charging unit 164 always maintains normal operation by supplying power through the auxiliary power connection unit 763, which is a constant power supply for constant power, and maintains the normal operation for about 5 seconds. do.

The comparator 842 of the fan drive controller 84, which receives the signal of temperature rise by the temperature detector 72, outputs the comparable signal with the reference signal, and then the transistors QS3 and QS4 By switching, the fan 85 is operated.

The power control device for a vehicle DV device according to the present invention configured as described above, when a monitor is installed in the vehicle to perform a monitoring function, stably feedbacks to a change in power supplied from the vehicle. It is designed to drive the DVD monitor as if it is installed in a building.

Claims (7)

A system control unit 20 for controlling the whole system, a power supply unit 16 for supplying power input from the outside, and a second pulse generator for receiving a signal output from the system control unit 20 to generate a 60 Hz signal 80, a fan drive controller 84 controlling the drive of the fan 85 by receiving the signal output from the system control unit 20, and 60Hz alternately receiving the power output from the power supply unit 16; Two sets of symmetrical pulse switching units 18 are formed so as to switch on and off, and a transformer for outputting an AC square wave of a constant voltage according to the switching of the pulse switching unit 18. The unit 30, a noise blocking unit 40 for blocking noise included in the voltage output from the transformer unit 30, and AC square wave power output from the noise blocking unit 40 are inputted to a predetermined frequency. The first pulse to output the pulse signal of A generator 60 and a transformer 64 for receiving a pulse signal of a predetermined frequency output from the first pulse generator 60 and converting the signal into a constant voltage, and converting the transformer unit 64 into a constant voltage. A power output unit 66 that receives the input power and converts it into various voltages according to use, and a power compensator 68 configured to compensate for a change in the voltage output from the power output unit 66. And a data switching unit 60 for driving various devices by outputting signals to the power compensator 68 and the connector 101 while being switched by receiving various signals, and the first pulse generator 60. Power control device for a vehicle TV device, characterized in that consisting of a temperature sensing unit 72 for detecting a temperature rise in the subsequent portion. According to claim 1, wherein the power supply unit 16 is connected to the first reverse voltage prevention unit 162 and the first reverse voltage prevention unit 162 which is formed to prevent the power input from the outside to reverse the flow A noise blocking unit 165 for removing noise, a power charging unit 164 formed of a plurality of capacitors so as to delay a maximum of 5 seconds to operate even when the power is cut off due to a temperature rise, and an output from the power charging unit 164 When the power is applied to the transformer unit 30, the power control device for a vehicle TV device characterized in that it is formed of a second reverse voltage prevention unit (163) to prevent the reverse flow. The method of claim 1, wherein the pulse switching unit 18 is configured to receive a signal of 60Hz output from the second pulse generating unit 80 so that the two sets are alternately switched to each other, that is, odd, even concept Power control device for a vehicle TV device, characterized in that. The power control device of claim 1, wherein the first pulse generator (60) outputs pulses of 125 KHz to 320 KHz. The circuit of claim 1, wherein the first pulse generator (60) includes a switching unit (601) configured to switch an input signal, an amplification unit (602) for amplifying the input signal, and other circuit stabilizers. The power control device for a vehicle TV device, characterized in that formed of a plurality of diodes, resistors and capacitors. The power supply compensator 68 of claim 1, wherein the power compensator 68 includes a constant voltage controller 681 for controlling output of 5V power, and a switching unit 683 for receiving and switching a signal output from the constant voltage controller 681. , A power control device for a vehicle television device, characterized in that a plurality of resistors and capacitors are formed for circuit stabilization. The transistor of claim 1, wherein the fan driving controller 84 compares and outputs a signal input from an external device, and a transistor configured to switch a signal output from the comparator 842 as a base terminal. A vehicle QS3, a transistor QS4 having a base terminal connected to an emitter terminal of the transistor QS3, and a zener diode 843 are formed at an input terminal of the comparison unit 842. Power control device of TV device.